ERD tables not associating

[Amber_B]

I'm learning to use Qlik and have uploaded a dataset from Xcel given to me by the course provider.  The Products table and Orders table are meant to be linked via the ProductKey, however they've appended their sheet name to the front in each table.  I've tried to manually associate them in the data manager, but it isn't working.  I'm 99% certain this failure to link is the issue in my dashboard charts.  Can anyone help me to figure out how to fix this? 

[Amber_B · Accepted solution]

I've managed to solve my own problem.  I hadn't clicked on the green "Load Data" box in the top right after manually associating the ProductKeys.  In case anyone else is new to this and figuring it out as they go!